GRASE IMPROVES SPATIAL-RESOLUTION IN SINGLE-SHOT IMAGING

被引：41

作者：

FEINBERG, DA ^{[1
]}

KIEFER, B ^{[1
]}

JOHNSON, G ^{[1
]}

机构：

[1] SIEMENS AG,MED ENGN GRP,ERLANGEN,GERMANY

来源：

MAGNETIC RESONANCE IN MEDICINE | 1995年 / 33卷 / 04期

关键词：

GRASE; RARE; ECHO PLANAR IMAGING; HIGH SPEED MRI;

D O I：

10.1002/mrm.1910330411

中图分类号：

R8 [特种医学]; R445 [影像诊断学];

学科分类号：

1002 ; 100207 ; 1009 ;

摘要：

In single shot echo train imaging all the data required for a two dimensional image is acquired from a series of echoes generated following a single RF excitation pulse. Spatial resolution is limited because all samples must be acquired before the signal decays. In this paper we shaw theoretically that more echoes and hence better spatial resolution can be obtained with single shot GRASE imaging than with either echo planar imaging or single shot RARE imaging. This conclusion holds for both conventional imaging hardware and specialized gradient hardware designed for EPI. High quality single shot GRASE images support the theoretical conclusions.

引用

页码：529 / 533

页数：5

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